Is it permissible to benefit from a father's money acquired from working in a usurious bank, to borrow from him, or to inherit from him?

Working in usurious banks is forbidden, even if the work is in a field other than interest-based contracts, because it constitutes cooperation in sin. As for Islamic banks, working in them is permissible. If the bank is usurious, the salary derived from it is unlawful (haram), and it must be given as charity to the poor and needy, or spent on the welfare of Muslims. A poor person is permitted to take from it an amount sufficient for their needs. If the father's money is a mix of lawful and unlawful earnings, there is no objection to you benefiting from it. However, if it is entirely unlawful, you are not permitted to take from it unless you are poor, in which case you may take only what you need. The prohibition of usurious loans relates to the borrower's responsibility, and the heir must extract the amount of unlawful money from the inheritance. The father must be advised to repent and return to Allah.